Interspace Tooth Brush is what we all need to remove the cavity & foodstuff trapped in between our teeth , which cause gum problems & tooth decay. Even Flossing or interdental brush cannot remove the objects between teeth, then u will need this. As not all our teeth are perfectly shaped and lined up for easy cleaning by normal brush & flossing. Interspace tooth brush is NOT AVAILABLE @ watsons, guardian pharmacy, ntuc, cold storage or any retail as this product is not profitable. But why i like to share with all of you this is because i share the same problems for i have spent a lot on dental bills over the years but have came across this interspace toothbrush - thankfully to a doctor & dental assistant who i came to know in life. Every day i will have meat, vegeatables & nuts trapped in between my top molar teeth causing me severe pain & discomfort after each meals. With this interspace toothbrush, i do not need to spent thosands of dollars on bridge or root canal therpy which is not life time lasting Note: This is interspace not interdental toothbrush. Interspace can be use till the brush tip become fray , unlike interdental which is a 1 time use quality product. Currently only 2 sets available @$19 each set (4 pcs each set ) if u require more - preorder is available. if u can wait 2-3weeks and willingly to make full payment.